Sebastian Musiał
Front-end Developer at CHILID Hi-End Web Design
Wyry, Silesian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolSebastian Musiał is a senior Front-end Developer from Poland with 11 years of experience building JavaScript and TypeScript web applications and a strong focus on UX-driven business value. He specializes in modern front-end architectures and frameworks (Angular, React, Vue/Nuxt, Next.js) and state management (NgRx, Redux), while also contributing to backend tooling like Marble.js where he improved routing and form parsing. Comfortable across the stack with Node/NestJS, testing (Jest/Karma), Nx monorepos and CI workflows, he stays current on GenAI and OpenAI integrations to accelerate developer productivity. At Boldare and CHILID he combines pragmatic engineering with design-aware implementation, drawing on a formal computer science education from Politechnika Śląska. Notably, his open-source work shows an attention to core framework behavior rather than just surface features, reflecting a preference for durable, architecture-level improvements.
11 years of coding experience
Magister (Mgr), Informatyka, Magister (Mgr), Informatyka at Politechnika Śląska w Gliwicach
Stackoverflow
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Github Skills (16)
application-framework10
app-framework10
web-framework10
typescript10
javascript10
nodejs10
functional-programming10
typescripts10
observable10
rxjs10
typescript-types10
observables10
reactive9
http8
testing8
Programming languages (4)
Github contributions (5)
marblejs/marble
May 2018 - Jun 2018
Marble.js - functional reactive Node.js framework for building server-side applications, based on TypeScript and RxJS.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 commits, 7 PRs, 9 pushes in 1 month
Contributions summary:Sebastian primarily contributed to the `marblejs/marble` framework, focusing on improvements related to intercepting URL parameters within the HTTP request handling. Their work included modifying core files to extract and process parameters, creating factories, and implementing testing. The user also added support for parsing "x-www-form-urlencoded" data in the middleware. These changes demonstrate a focus on enhancing the framework's routing and data parsing capabilities.
rxjsfunctional-programmingfunctional-reactive-programmingjs-frameworknode-js
boldare/openai-assistant
Mar 2024 - Feb 2025
A NestJS library for building efficient, scalable, and quick solutions based on the OpenAI Assistant API (chatbots) 🤖 🚀 Chatbot, Ready API and UI, OpenAI Functions, GPT-4 Vision, GPT-4o
Contributions:10 releases, 11 reviews, 56 PRs in 11 months
aiassistant-apiassistant-chat-botschatbotchatgpt
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